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Sterlco 46520-KD Duplex 30 GPM Condensate Return Pump with 30 Gallon Steel Tank 50 PSI

$ 5,077.05

Sterlco 46520-KD Duplex 30 GPM Condensate Return Pump with 30 Gallon Steel Tank 50 PSI offers (2) two bronze fitted 30 gallon per minute centrifugal pumps with 50 psi discharge pressure and 3 HP “selectable” electric motor voltage, float switch, and automatic venting rated up to 212 F operation . Made in USA.

Note: Mechanical actuators are recommended for duplex pumps.

Duplex Control panels are sold and ordered separately but can be assembled as a unit at factory or shipped as a wall mount.

To view and order “optional control panel” for condensate pump sold separately, Click Duplex Control panels

Specify Operation Voltage * 

Optional Motors (ODP Standard)

Options – Add Additional Tank Openings

Optional Special Coatings

Tank Options


Sterlco 46520-KD Duplex 30 GPM Condensate Return Pump with 30 Gallon Steel Tank 50 PSI unit features heavy gauge, 3/16? steel receivers for long operating life. In addition, 3450 RPM motors assure maximum efficiency while maintaining minimum motor horsepower. Combine with optional mechanical alternator and experience a long term solution with reliability. Available in a wide range of sizes, these U.S. made pumps have just the right accessories and options to meet your unique needs. What’s more, a nationwide network of stocking distributors means fast, easy, year round access to pumps and replacement parts.

Specifications Brochure


  • Operating Temperature up to 212 F
  • Heavy gauge steel receivers
  • Simplex or duplex construction
  • Stainless steel fitted centrifugal pumps
  • Energy efficient 3450 RPM motors
  • Automatic venting
  • Carbon ceramic pump seal (300°F) with EPDM elastomers
  • Heavy-duty float switch
  • Wide range of options and accessories

Built-In Features For Precise, Dependable Performance

  1. Motors: Heavy-duty, ball-bearing, close-coupled pump motors with stainless steel shaft. 3450 RPM for greater efficiency and more economical operation.
  2. Float Switch: Two-pole, drip proof case, stainless steel float and float rod, doublebreak silver-to-silver contacts. Float travel adjustment is easy, visible and accessible.
  3. Automatic Venting: Provides for efficient operation and long life by venting air and flushing seal area.
  4. Large Tanks: Plenty of capacity for maximum rating of pump. Return inlet is low. Occupies a minimum of floor space
  5. Impeller: Made of stainless steel for long life. Efficient design provides maximum capacity, minimum motor load.
  6. Inducer: Made of stainless steel for long life. Raises the inlet pressure by an amount sufficient to prevent cavitation.
  7. Pump seal: Features the ultimate in ceramic technology for exceptionally long life. Seal is carbon ceramic with EPDM elastomers. Rated for temperatures up to 300°F.
  8. Isolation Valve: Optional on 4600 Series Condensate Units. Allows removal of pump without draining the tank.

Optional Features

  • Mechanical and electric alternators for duplex units
  • Gauge glass
  • Thermometer
  • Isolation valves
  • Special motor construction, such as totally enclosed, washdown duty and explosion-proof is available
  • 120 gallon and elevated tanks are available
  • Complete NEMA 12 Control Panel

Additional information

Weight 330 lbs
Dimensions 31 × 18.38 × 14.25 in
Manufacturer Part Number


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